Patents by Inventor Thomas L. Hamlin

Thomas L. Hamlin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Sheet separator
    Patent number: 4305576
    Abstract: An automatic document handler adapted to receive a stack of a stack of documents to be copied for feeding the documents seriatim to the platen of a copy machine and returning the copied documents to the stack. A combination vacuum-document separator in conjunction with an air knife and a document tray having a "U" shaped pocket with ramps formed on both sides thereof is provided to assure positive feeding of various sized documents without misfeeds or multifeeds.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: December 15, 1981
    Assignee: Xerox Corporation
    Inventor: Thomas L. Hamlin